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ACCUMULATED OTHER COMPREHENSIVE LOSS Accumulated Other Comprehensive Loss (Notes)
 3 Months Ended
Mar. 31, 2020
Statement of Other Comprehensive Income [Abstract]  
Accumulated Other Comprehensive Loss [Text Block]
ACCUMULATED OTHER COMPREHENSIVE LOSS
 
Postretirement Benefit Plans
 
Cumulative Translation Adjustment
 
Accumulated Other Comprehensive Loss
December 31, 2019
$
(133.3
)
 
$
(252.0
)
 
$
(385.3
)
Net change during period
0.9

 
(51.3
)
 
(50.4
)
March 31, 2020
$
(132.4
)
 
$
(303.3
)
 
$
(435.7
)
 
 
 
 
 
 
December 31, 2018
$
(131.6
)
 
$
(243.9
)
 
$
(375.5
)
Net change during period
0.6

 
(2.4
)
 
(1.8
)
March 31, 2019
$
(131.0
)
 
$
(246.3
)
 
$
(377.3
)